diff --git a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/main.xc b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/main.xc
index a54fffa..cc313a2 100644
--- a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/main.xc
+++ b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/extensions/main.xc
@@ -447,6 +447,7 @@ extern unsafe streaming chanend uc_dfu;
 #endif
 extern void key_sender(chanend c_key);
 extern void key_receiver(chanend c_key);
+extern void mute_handler();
 
 
 /* Main for USB Audio Applications */
@@ -575,6 +576,7 @@ int main()
 
           }
         }
+        on tile[1]: mute_handler();
 
         on tile[0] : {
           par {